5- Invaders ✅ Flashcards Preview

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Flashcards in 5- Invaders ✅ Deck (51):
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Bacteriophages

A type of virus that is parasitic towards bacteria

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Binary fission

A type of cell division of prokaryotic where two daughter cells are formed from the parent cell

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Chitin

A polysaccharide composed of glucose like units that contain nitrogen. Its structure is similar to cellulose

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Commensalism

A form of symbiosis of two species where one is benefited and the other is uneffected

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Communicable

Able to be communicated from one organism to another

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Contagious

Able to be transferred by direct contact

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Ectoparasite

An parasite that lives on the outside of its host

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Endoparasite

A parasite that lives inside its host

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Encysted

To be enclosed in a cyst

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Endemic

A disease confided to a geographic region or population
A organism that is confined to a specific place or location

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Endospore

A hard walled spore that forms with the original bacterial cell, not by budding off

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Flagellum

Fine cellular projections form 20-100um in length on the surface of Protozoa, bacteria and sperm

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Gametocytes

Male or female sex cells

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Host

An organism from which a parasite derives its survival requirements such as nutrients, or shelter

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Immune

Term used to describe something that is not effected by something else

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Incubation period

The period of time after infection where the pathogen builds in strength before showing symptoms

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Infectious

An agent that can be transmitted from one organism to another

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Innate

Not learnt, inherently know

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Keratinised

To become scalely

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Lyses

To undergo lysis (cell poping)

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Merozoite

The daughter cell of a protozoan parasite

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Microorganism

Any organism that can be seen with a microscope

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Mortality

To do with death

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Mutualism

A form of symbiosis where both parties are benefitted in some way

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Mycelium

Fine thread like filaments of fungi that form a mass or ball

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Non-infectious

An agent that cannot be transmitted from one organism to another

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Obligate

Describes an organism that can only survive in another organism

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Outbreak

A sudden increase in the incidence of something, in this case, a disease causing pathogen

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Pandemic

Worldwide disease

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Pathogenicity

The disease causing capacity of a pathogen

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Pathogen

Any disease causing organism or molecule

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Peptidoglycan

A protein-carbohydrate compound that makes up the cell walls of prokaryotes, such as bacteria

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Phytoalexins

Chemicals produced by plants under attack, plant antibodies

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Platelet

Cell fragments found in the blood that cause coagulation and clogging of wounds

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Prions

Infectious self-reproducing protein particles

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Resistance

Describes the extent to which an organism is or is not effected by an agent such as a pathogen or chemical toxin

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Vector

An agent that transfers something such as a pathogen from one location to another

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Susceptibility

Describes the level of response by an organism to a pathogen

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Virulence

Describes the intensity of the effect of a pathogen

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Disease

A disorder of function in an organism, especially one that targets specifics, that being organism, organ, cells etc, from this it shows specific signs and symptoms

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Carrier

An individual that carries a the microorganisms of a disease with out showing symptoms

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Epidemic

A disease that affects a large population of individuals in a population or segment of a population over a defined period of time.

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Host

An organism from which a parasite derives its survival requirements such as nutrients and shelter

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Symptom

A physical or mental feature that is regarded as indicating a condition of disease

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Agent

Any molecule or organism that is capable of producing an effect.

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Organism

A living being composed of organs, tissues, cell and organelles

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Parasite

An organism that live in (endoparasite) or on (ectoparasite) another organism relying on it for the necessities of life

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Chemical defence

A process in immune defence where chemicals (cytokines, histamines, and so on) are used in defending the body.

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Lysozyme

An enzyme (in tears) that's catalyses the destruction of the cell walls of certain bacteria

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Mucous membrane

A layer of mucous that covers a surface, it is used to protect from pathogenetic agents

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Physical barrier

A 'wall' that defends an area from infection of an organism